TWI573123B - 背光模組及其驅動方法以及具有此背光模組的顯示裝置 - Google Patents

背光模組及其驅動方法以及具有此背光模組的顯示裝置 Download PDF

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Publication number
TWI573123B
TWI573123B TW104139767A TW104139767A TWI573123B TW I573123 B TWI573123 B TW I573123B TW 104139767 A TW104139767 A TW 104139767A TW 104139767 A TW104139767 A TW 104139767A TW I573123 B TWI573123 B TW I573123B
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TW
Taiwan
Prior art keywords
light
backlight module
light source
emitting unit
viewing angle
Prior art date
Application number
TW104139767A
Other languages
English (en)
Chinese (zh)
Other versions
TW201719622A (zh
Inventor
李建輝
李清祥
劉勁谷
吳中豪
Original Assignee
揚昇照明股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 揚昇照明股份有限公司 filed Critical 揚昇照明股份有限公司
Priority to TW104139767A priority Critical patent/TWI573123B/zh
Priority to CN201610515342.6A priority patent/CN106814502A/zh
Priority to US15/222,104 priority patent/US10036846B2/en
Priority to EP16198881.1A priority patent/EP3173859B1/en
Priority to JP2016223915A priority patent/JP6850109B2/ja
Application granted granted Critical
Publication of TWI573123B publication Critical patent/TWI573123B/zh
Publication of TW201719622A publication Critical patent/TW201719622A/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
TW104139767A 2015-11-27 2015-11-27 背光模組及其驅動方法以及具有此背光模組的顯示裝置 TWI573123B (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
TW104139767A TWI573123B (zh) 2015-11-27 2015-11-27 背光模組及其驅動方法以及具有此背光模組的顯示裝置
CN201610515342.6A CN106814502A (zh) 2015-11-27 2016-07-01 背光模组及其驱动方法以及具有此背光模组的显示装置
US15/222,104 US10036846B2 (en) 2015-11-27 2016-07-28 Backlight module, driving method thereof, and display apparatus using the backlight module
EP16198881.1A EP3173859B1 (en) 2015-11-27 2016-11-15 Backlight module, driving method thereof, and display apparatus using the backlight module
JP2016223915A JP6850109B2 (ja) 2015-11-27 2016-11-17 バックライトモジュールとその駆動方法、及び当該バックライトモジュールを有する表示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW104139767A TWI573123B (zh) 2015-11-27 2015-11-27 背光模組及其驅動方法以及具有此背光模組的顯示裝置

Publications (2)

Publication Number Publication Date
TWI573123B true TWI573123B (zh) 2017-03-01
TW201719622A TW201719622A (zh) 2017-06-01

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TW104139767A TWI573123B (zh) 2015-11-27 2015-11-27 背光模組及其驅動方法以及具有此背光模組的顯示裝置

Country Status (5)

Country Link
US (1) US10036846B2 (ja)
EP (1) EP3173859B1 (ja)
JP (1) JP6850109B2 (ja)
CN (1) CN106814502A (ja)
TW (1) TWI573123B (ja)

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CN113641042A (zh) * 2021-08-13 2021-11-12 武汉华星光电技术有限公司 一种显示面板
US11650456B2 (en) 2021-10-06 2023-05-16 Champ Vision Display Inc. Display device having a privacy display mode and a normal display mode

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CN108292062B (zh) 2015-11-27 2019-12-13 矽光学有限公司 用于自由运行方式和受限运行方式的显示屏
TWI589966B (zh) 2016-05-12 2017-07-01 揚昇照明股份有限公司 光源模組及顯示裝置
CN107664871B (zh) * 2016-07-27 2020-03-31 京东方科技集团股份有限公司 一种背光模组及显示装置
DE102016120256A1 (de) * 2016-10-24 2018-04-26 Ledvance Gmbh Beleuchtungsvorrichtung mit variabler lichtverteilung
KR102585534B1 (ko) * 2016-12-20 2023-10-05 엘지디스플레이 주식회사 액정표시장치
CN108319071B (zh) * 2017-01-17 2021-09-28 群创光电股份有限公司 显示装置
DE102017006285A1 (de) 2017-06-30 2019-01-03 Sioptica Gmbh Bildschirm für einen freien und einen eingeschränkten Sichtmodus
DE102017007669A1 (de) 2017-08-14 2019-02-14 Sioptica Gmbh Bildschirm für einen freien und einen eingeschränkten Sichtmodus und Verwendung desselben
CA3084793C (en) * 2017-12-18 2022-08-30 Leia Inc. Mode-switchable backlight, display, and method
KR102537268B1 (ko) * 2018-04-23 2023-05-30 삼성디스플레이 주식회사 표시 장치
US10782545B2 (en) 2018-05-16 2020-09-22 Sharp Kabushiki Kaisha Liquid crystal private device
US11069179B2 (en) * 2018-10-03 2021-07-20 Sg Gaming, Inc. Gaming machine having enhanced emotive lighting
KR102587654B1 (ko) * 2018-10-18 2023-10-11 삼성디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시 장치
CN109272946B (zh) * 2018-11-16 2020-06-05 昆山龙腾光电股份有限公司 一种背光源控制电路及液晶显示装置
US11002998B2 (en) * 2019-01-31 2021-05-11 Sharp Kabushiki Kaisha Enhanced privacy switchable backlight system
CN109686244A (zh) * 2019-02-02 2019-04-26 京东方科技集团股份有限公司 背光模组及显示面板
CN110501833B (zh) * 2019-08-27 2022-09-02 厦门天马微电子有限公司 一种显示装置
KR20220062028A (ko) * 2019-09-11 2022-05-13 브라이트뷰 테크놀로지즈 아이엔씨. 백라이트 디스플레이용 백라이트 유닛
US11822158B2 (en) * 2019-09-11 2023-11-21 Brightview Technologies, Inc. Back light unit for backlit displays
CN211236517U (zh) * 2019-12-24 2020-08-11 中强光电股份有限公司 背光模块及显示装置
JPWO2021131792A1 (ja) 2019-12-26 2021-07-01
CN111176016B (zh) * 2020-01-07 2022-10-18 京东方科技集团股份有限公司 一种背光模组和显示装置
TWI725727B (zh) * 2020-02-05 2021-04-21 瑞儀光電股份有限公司 背光模組以及顯示器之視角調整方法
CN112099255B (zh) * 2020-09-28 2022-06-03 厦门天马微电子有限公司 显示模组和显示装置
CN213069418U (zh) * 2020-10-12 2021-04-27 中强光电股份有限公司 扩散片及背光模块
WO2022133080A1 (en) * 2020-12-18 2022-06-23 Brightview Technology, Inc. Edge-lit back light unit with improved efficiency
US20240184150A1 (en) * 2021-04-21 2024-06-06 Beijing Boe Optoelectronics Technology Co., Ltd. Backlight module and display apparatus
CN216848405U (zh) * 2022-03-11 2022-06-28 中强光电股份有限公司 背光模块及显示装置
CN114967224B (zh) * 2022-04-07 2024-01-30 武汉华星光电技术有限公司 背光模组及显示装置
CN114779390B (zh) * 2022-06-17 2022-10-28 惠科股份有限公司 显示装置与显示方法
CN117538975A (zh) * 2022-08-02 2024-02-09 苏州佳世达电通有限公司 显示装置
TWI826042B (zh) * 2022-10-12 2023-12-11 達運精密工業股份有限公司 可切換式背光模組
KR20240083467A (ko) * 2022-12-05 2024-06-12 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 표시 장치

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TW201031969A (en) * 2009-02-18 2010-09-01 Wintek Corp Image display device and illumination control device
US20120050342A1 (en) * 2010-08-31 2012-03-01 Jiandong Huang Switchable Viewing Angle Display
TW201232122A (en) * 2011-01-31 2012-08-01 Univ Nat Chiao Tung Backlight device with angle adjustment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113641042A (zh) * 2021-08-13 2021-11-12 武汉华星光电技术有限公司 一种显示面板
US11650456B2 (en) 2021-10-06 2023-05-16 Champ Vision Display Inc. Display device having a privacy display mode and a normal display mode

Also Published As

Publication number Publication date
JP6850109B2 (ja) 2021-03-31
EP3173859A1 (en) 2017-05-31
CN106814502A (zh) 2017-06-09
TW201719622A (zh) 2017-06-01
EP3173859B1 (en) 2019-12-25
US20170153383A1 (en) 2017-06-01
US10036846B2 (en) 2018-07-31
JP2017098246A (ja) 2017-06-01

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